APA引文

Siegel, J. (2006). A Pacific Northwest nature sketchbook. Timber Press.

Chicago Style (17th ed.) Citation

Siegel, Jude. A Pacific Northwest Nature Sketchbook. Portland, Or.: Timber Press, 2006.

MLA引文

Siegel, Jude. A Pacific Northwest Nature Sketchbook. Timber Press, 2006.

警告：這些引文格式不一定是100％准確.